package com.neusoft.bootweb.config;

import com.alibaba.fastjson.serializer.SerializerFeature;
import com.alibaba.fastjson.support.config.FastJsonConfig;
import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;
import com.neusoft.bootweb.interceptor.EncodingInterceptor;
import org.springframework.boot.autoconfigure.http.HttpMessageConverters;
import org.springframework.boot.web.server.ErrorPage;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpStatus;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import java.util.Arrays;
import java.util.List;

@Configuration
public class WebMvcConfig implements WebMvcConfigurer {

    /**
     * 转换器
     * @param converters
     */
    @Override
    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {

        // 1.定义一个converters转换消息的对象
        FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();
        // 2.添加fastjson的配置信息，比如: 是否需要格式化返回的json数据
        FastJsonConfig fastJsonConfig = new FastJsonConfig();
        fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat);
        // 3.在converter中添加配置信息
        fastConverter.setFastJsonConfig(fastJsonConfig);
        // 4.将converter赋值给HttpMessageConverter
        HttpMessageConverter<?> converter = fastConverter;
        // 5.返回HttpMessageConverters对象
        converters.add(converter);
    }

    /***
     * 拦截器
     * @param registry
     */
    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        /*registry.addInterceptor(new EncodingInterceptor())
                .addPathPatterns("/**")
                .excludePathPatterns("/index.html","/static/*");*/
    }

    /**
     * 全局跳转页面
     * @param registry
     */
    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/haha").setViewName("aaa");
        registry.addViewController("/login").setViewName("index");
    }


    /*@Bean
    public EmbeddedServletContainerCustomizer containerCustomizer() {
        return container -> {
            ErrorPage error404Page = new ErrorPage(HttpStatus.NOT_FOUND, "/error/404");
            ErrorPage error500Page = new ErrorPage(HttpStatus.INTERNAL_SERVER_ERROR, "/error/500");
            container.addErrorPages(error404Page, error500Page);
        };
    }*/

    /***
     * <bean class=""></bean>
     * @return
     */
    @Bean
    public ServletRegistrationBean<MyServlet> servletRegistrationBean()
    {
       return new ServletRegistrationBean<>(new MyServlet(),"/my.do");
    }

    @Bean
    public FilterRegistrationBean<MyFilter> filterFilterRegistrationBean()
    {
        FilterRegistrationBean<MyFilter> filterFilterRegistrationBean =
                new FilterRegistrationBean<MyFilter>();
        filterFilterRegistrationBean.setFilter(new MyFilter());
        filterFilterRegistrationBean.setUrlPatterns(Arrays.asList("/*","*.do"));
        return filterFilterRegistrationBean;
    }


}
